Profit Margin Calculator

Calculate true ecommerce profit margin after product cost, shipping, platform fees, discounts, and refund drag. Use when teams need a fast profitability real...

Security Scan

The skill is an instruction-only calculator for ecommerce margins; its declared purpose matches the inputs and instructions, and it does not request credentials, install anything, or perform out-of-scope actions.

Purpose & Capability

Name, description, and required inputs (price, costs, fees, refunds, optional fixed-cost allocation) align with a profit-margin calculator. There are no unrelated env vars, binaries, or config paths requested.

Instruction Scope

SKILL.md contains only calculation workflow, input requirements, output template, and risk/assumption guidance. It does not instruct the agent to read system files, access credentials, transmit data to external endpoints, or perform other unrelated actions.

Install Mechanism

No install spec and no code files — the skill is instruction-only, so nothing is fetched or written to disk during install.

Credentials

The skill requires no environment variables, credentials, or config paths. All required inputs are business numbers the user supplies at runtime.

Persistence & Privilege

always is false and the skill does not request persistent/system-level changes. It does not modify other skills or system configuration.

Assessment

This skill appears to be a simple, self-contained calculation template. Before installing or using it: (1) avoid supplying sensitive credentials or unrelated system data — it only needs business numbers (price, costs, fees, refund rate); (2) verify assumptions (refund rate, fee percentages, fixed-cost allocations) because outputs are sensitive to those estimates; (3) run some known test cases to confirm the calculations match your accounting rules; and (4) remember that, as an instruction-only skill, it does not fetch external code or store credentials, but an agent with network access could still be asked to send results elsewhere — limit what you ask the agent to do with calculated outputs if you are concerned about data sharing.

不要只看毛利，要看最后真正剩下多少。

解决的问题

很多团队说“这个产品利润不错”，其实只算了售价减进货价，没把这些算进去：

• 运费和包装；
• 平台手续费；
• 折扣、券、活动补贴；
• 退款和售后损耗；
• 必要时还要分摊基础运营成本。

这个 skill 的目标是： 把利润率从一个粗数字，变成一张真正能用于经营判断的 margin 拆解。

何时使用

• 对比多个 SKU 利润健康度；
• 定价前确认是否还有空间；
• 发现营收增长但利润不涨时做排查。

输入要求

• 售价
• 商品成本
• 运费 / 包装 / 仓储等履约成本
• 平台费 / 支付费 / 渠道费
• 折扣或优惠
• 退款率 / 售后损耗
• 可选：固定成本分摊

工作流

1. 计算毛利与毛利率。
2. 扣除履约、渠道、折扣、退款影响。
3. 输出净利润与净利率。
4. 标记利润被侵蚀最严重的环节。

输出格式

1. 成本拆解表
2. 毛利 / 净利结果
3. Margin 风险点
4. 优化建议

质量标准

• 不混淆 gross margin 和 net margin。
• 清楚指出利润被谁吃掉。
• 结果可用于 SKU 比较或经营复盘。
• 明确哪些数字是估算值。

资源

参考 references/output-template.md。